Warp stop-motion for looms.



A. E, RHOADES.

WARP STOP MOTION FOR LDOMS,

APPLICATION FILED JAN. 11, 1908.

Patent d Jan. 12,1909.

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Toall whom it may coneerm Be it known that LALouzo-E. RHoAnEs, a cltlzen of the United States, and resident of Hopeda-le, countyof Worcester, State of Massachusetts, have invented an Improve-- ment in Warp Stop-Motions for Looms, of"

which the following description, in 'conn'ec-f .tion with the accompanying drawing, is a specification, likeletters on the drawing representing like parts. p

This invention relates to warp stop-moti on apparatus for 1001105, wherein dropde- ,vlces or detectorswhich control the stop-v mounted apertured frames 4 intdth motion are hung upon' and suspendedfrom the warp-threads, the invention having for its ob ect the production of novel means for limiting the upwardmovenient or jumping" of the detectors on their supports.

0 I have provided means whereby the limit-- mg member or downhold may be slid manu- 'ally into inoperative position "to permit ready access to the detectors, and the downhold may be also liftedbodily from the loopi without the use of a wrench or other too 1 The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure l is a transverse sectional view of a sufiicient portion of a loom, provided with a warp stop-motion embodying my. invention; Fig. 2 is an enlarged rear elevation, centrally broken out,.-of the warp stop-motion mechanism; Fig. 3 is a left hand elevation of the apparatus shown in Fig. 2, withthe downhold in operative position;. Fig. 4 is a similarview but showing the. downhold in its inoperative position Fig. 5 is a section on the line 5-5, Fig. 2, looking to ,the right but with the downhold in inoperative position, and shown in dotted lines as about to be removed bodily from the loom; Fig.

6 is a top plan View, broken out, of the downhold.

- The warp-stop-motion ed on stands A", one on each, loon sldeg'beg" tween the whip-roll W and the harnes H, Fig. 1, brackets l boltedts having each an upturned web 2, wl1; sustain 'a rod 3 on" whlch are p1v tures of which the lease-rods L loosely extend. Said lease-rods dlvide the warp into two divisions 'w, w, and I have RHOADES, or HOPEDALE, 'MASSACHUSETllS, .kssieuon 'ro Zip or HOPEDALE, MASSACHUSETTS, A. CORPQRATIQN or MAIN I Specificationot Letters Patents, 1 I Application filed January i1,;1'eos. Serial No'. 410,336..

- plate has formed upon-"- their upper ends ekten'din I them forward.

Pal:

shown herein two banks r vices or detectors d, each nally' from its lowere'nd pended ,h-om a singlew p J ,0 series of detectors being 'ltitlated'"between lease-rods and being 'guidedfverticallyfl by" transverse supports 5,15 arranged; llelis m' and held at "their portions 6 of the bra-eke A double-stroke feele' rock-shaft f supported tions 6, and vi-bi'atile inf tid ,1. he" bra'ck ztth bel' 1 1 tectors' by any suitableor elll anism, 21 released detecto igaging, and arrestini tle stoppage ofI'the loom intwe'l The mechanism so far'descr 7 novel part 'of my present invention a chosen for purposes of ill at Upon each of the webs? 3 cure, as by bolts 7, anf'elongat'tl metallic. olate '8 of suflicient length toexteiitl 'aci oss the ends of the lease-rods t'hifeiid iii? wise movement, and atv having an undercut notch 1- a v fixed edges 11 of the platesffbriu g ports for the downhold,t"o"bedescribed. 3

rock-shaft 12 is mountcdin'said their rear ends, behind it upon the projecting ends cure the hubs of upturned s'wlf M and being shaped at l l' to'd olfi i As shown in Fig. 2 alight spring" 53s coiled around the rook-shaft "2 and lias foil end secured to the adj acenfi'plate"8;tlieotlisi end being attached to a'colla'r lli f a. "nthe' rock-shaft, the, winding of thefspliing ibeiiig so arranged'as to tend to throw the arms 1-3 forward. Rearward moyement'ofth'e arms is limited by stops l7" Quanta) shown in F ig. 4 when the a rin the stops they'are almost" ii e'ctly rock-shaft, so that very littfl i n the present embod'i em; or tiongthe d'ownhold 'comjp u ned eai; edges as; g se'ciired,"asf by Pivefis'iQ 'OQF in. 6", to eti flls w i -11am, sin an being cut away to leave a sliouItIefiQQfindat- '1 their rear portions widened and shaped tothat 19 the b present open sockets 23'. The flanges 19'em- 11 0 brace the front and rear edges of the end members, as shown in Fig. 6, and the latter rest upon the top edges 11 of the plates 8, the sho'ulders 2'2 abutting against the ends of the notches when the downhold is in its operative position, see Fig; 3, the overhanging )ortions of the ears '9 above the end,

mem ers 21 serving to prevent any rising of,tlie downhold. As shown in Fig. 1 the body 18 of the downhold extends across the loom above the series of detectors d, so that their upward movement or jumping is effectually limited, with no possibility of the disengagement of) detector from its warpthrcad or the support 5.

, The arms 13 enter loosely the sockets 23 ofthe end members of the downhold, and

L edges will rest a parts .25, giv in -ment between the arms and the downhold to when the latter is operatively positioned shoulders 24 on the arms rest-flat upon the members QI, see Fig. 3, while the back por- V H tions- 25 of'the sockets 23 overhang shoulders 26 on the rear edges of the arms. The front edges of the sockets 23am beveled, so that when the arms aleswung upward into the position shown in F igs..4 and 5 the said arms, and the shoulders'26 turn under the ",sufiicient freedom of movepermit the latter to he slid rearwardly along a the topsof the plates 8 when the arms 13 are swung rearward by. the operator.

When the downhold is in inoperative posie t ion,l"ig. 5, the detectors .of bothseries are exposed so that free access may be had thereto,.as will bemanifest, but if for any reason greater freedom be desired, or if anew warp 1s to be put vin,' the operator can lift the downhold bodily, removing it entirely from the illfi1'iS."flS shown by=dotted lines Fig, 5.

Ordinarily it is sup osed that the wearer willgrasp one of the iandles 1t and swing- 'f'a 'atllefiillillls l3 forward,- after correcting a warp fault. to thereby return the downhold to operative position. Should this be neglect- I ed,- however. the downhold wilhhe returned autoimi-ti-cally to operative positiomxfor as soon asthe loom is started the vibrations will act in conjunction with thespriug '15 to turn the rock-shaft 12 and gradually throw the arnis forward to operatively position the downhold. When 'the loom is at rest-the force of the spring is not suflicient to swing s the, arms .forward from the position shown.

nnldigs. 4 and 5. I t llavmg fully described, my invention,

what I claim as new and desire to secure by Letters Patent. is:-- i I 7 ,'1.,In a warp stop-motion for looms, in combination, a series of, vertically-movable 1 detectors each suspended from a warptl reatha .dmvnhold to limit upward moves ii'i'ent of the detectors, fixed supports on which the clownholdiissli'dable, and manually. actuated meaus loosely connected with "alnst the front edgeseofthe and-to slide the downhold along said supports into inoperative position.

thread, a downhold to limit upward mov-e-.

merit of the detectors, and manually actuated means, detachably and loosel connected with and to slide the downho d into inoperative position and permitting movement, of the downhold relatively to said t means. 7 a 1 4. In a warp-stop-motion for looms, n

combination, a series of verticallyrmovable detectors each suspended from a warpthread, a downhold to limit upward movement of the detectors, the downhold having sockets at. its ends, fixed supports tosustain the downhold in operative position, and manually actuated means to sl de thedownhold into inoperative position, said means including plvotally mounted arms loosely entering the sockets of the downhold.

, 5. In a warp-stop motion for looms, in combination, a plurality of series of vertically-movahle detectors, suspended from single warp-threads, "a downhold adapted the downhold and provided with devices to and swinging retracting members detachably connected with the downhold, toslide it along the fixed supportsinto inoperative position.

6.111 a warp-stop-motion for looms, in comb nation, a plurality of series of verto ektend above the detectors'and limit up 7 ward movementthereof, fixed supports; {M71105 engage the same and prevent it/fro m rising,

tically-movabledetectors, suspended fromsingle warp-threads, fixed supports at the ends of the series of detectors, a 'downhold adapted to be seated thereon to "limit upavard movement 'of the detectors, :1 roc'- shaft behind the detectors, arms fixed on said rock-shaft and loosely connected with the downhold, to slide the same rearwardly and permit ready access to thetletectors, and a spring operatively connected with the rock-shaft to automatically insure return of the downhol'd to operative position when the operation of the loom is resumed.

"7 In a warp-stop-motion for looms, in combination, a plurality of series of vertical'ly movable detectors, suspended from single warp-threads, fixed supports at the ends of the series of detectors, a downhold comprising an elongated sheet-metal body,

and" rigid end members attached thereto,

effect the movement of the arms to operatively position the downhold.

8. In a' warpstop-motion for looms, in combination, 'a plurality of .banks or series 'of vertically movable detectors'each suspended froma single warp-thread, a downhold to limit upward movement of the detectors, manually actuated means to slide the downhold out of operative position, and a loose and detachable connection between said means, and the downhold, whereby the latter may be lif ted wholly "free of said means when desired, said loose connection 'permittingrelative movement ofthe down-.

hold and said means when the 'downhold is moved into and out of operative position.

In testimony whereof, I have signed my name to this'specification, in the presence of two subscribing witnesses.

ALONZO E. RHOADES 1W itnesses:

EDWARD DANA Osooon, FRANK J. DUTCHElL- 

